| 摘要 |
PURPOSE:To enable continuation of execution without stopping an operation even when a fault occurs in hardware not operating in an operation mode in execution, by inhibiting detection of the fault of the hardware not operating in the mode. CONSTITUTION:Masking circuits 10 to 12 for inhibiting outputs of fault detecting circuits 4 to 6 according to a mode signal 301 are provided between the fault detecting circuits 4 to 6 checking outputs of logic circuits 1 to 3 operating in a plurality of operation modes and fault storage circuits 7 to 9. The fault storage circuits 7 to 9 store outputs of the masking circuits 10 to 12 when the outputs of the fault detecting circuits 4 to 6 are masked by the masking circuits 10 to 12, while they store the outputs of the fault detecting circuits 4 to 6 as they are, when these outputs are not masked by the masking circuits 10 to 12. Even when a fault occurs in hardware not operating, according to this constitution, an operation of an information processing device can be continued without stopping it. |
